Home / 1,124.82-1,684.35-1,026.90

Finding the Fourth Proportional to 1,124.82, 1,684.35 and 1,026.90

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Solution

The fourth proportional to 1,124.82, 1,684.35 and 1,026.90 is: 1,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.82 : 1,684.35 = 1,026.90 : x
  2. Step 2: Convert to fraction form
    1,124.82/1,684.35 = 1,026.90/x
  3. Step 3: Cross multiply
    1,124.82x = 1,684.35 × 1,026.90
  4. Step 4: Simplify right side
    1,124.82x = 1,729,659.02
  5. Step 5: Solve for x
    x = 1,729,659.02/1,124.82
  6. Step 6: Final answer
    x = 1,537.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.